Package.



F. P. McCOLL.

PACKAGE.

APPLICATION man 0506, 1915.

Patented Oct. 3, 1916.

star-ens reruns orri s.

FBA NGIS P. MCGGLL, 0F ST. ANDEE'WS, NEJi-T BEUNS'EFIICK, CANADA, -ASSIGNQR T8 AIMERECAN KEY CAN COMPANY, OF CHIGAGU, ILLINOIS,

a'nnssY.

A CORPGRA'KION OF NEW EACKAGE.

ment in Packages, and declare the follow-. mg to be a full, clear, and exact descr1pt on of the same such will enable others skilled in. the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to the art of packag.-

ingfood products or other perishable goods orv goods which deteriorate in one way or another when exposed to air, moisture'or heat and it has for its object to produce a package which shall preserve the contents for a long time in the condition in which the -contents were when placed in the package,

regardless of the state of the weather or the climate.

Thereare several features to my invention and these may he used alone or in combination with 'each other.

Viewed in one of its aspects my invention may be said 'to have for its object to produce a simple container which shall be cheap enough to be employed commercially in the same way as the ordinary tin can and at the same time give to the contents the protco -t'ion of. a vacuum space around the contents.

Viewed in another of its aspects my in vention may be said to. have for its ob ect 'to produce a simple and novel container in which the contents are kept out of. contact with the metal of which the outer shell of the. container is made and are at the same time insulated effectively against the "free transmission of heat thereto from said outer shell. 7

Viewed in a further aspect, my invention may be said to-have for its object to the claims; but,-'for a full understanding of my'invcntion and of its objects and advantages, reference may be had to the following Specification of Letters Patent.

Patented ot. 3, 1916.

Application filcdpecemher 6, 1915. Serial No. 65,175.

detailed description taken in connection with the accompanying drawing,- wherein:

Figure l is vertical section through a package arranged in accordance with one form of my invention; Fig. 2 is a transverse section through the aforesaid package-@Fig.

3 is a view similar to F ig. 1, illustrating a modification; F 1g. t is a view similar to Fig. 2, illustrating the modification of Fig.

3; and Fig.. 5. is a viewsimila'r to Figs. 1 and 3, lllustrating a still further modification.

In the arrangement shown in Figs. 1. and

2 of the drawings, 1 represents a receptacle of any suitable or preferred shape or construction, that illustrated being a simple round roll top can. In the interior of the receptacle 1 18 21.11 inner receptacle preferably of some material which is a non conductor of heat and which will not injure nor be injured by the goodswhich are to be packaged in the container. @rdinarilythe inner container conveniently be made of strong paper which may be suitably treated to resist the action of moist or greasygoods, if necessary. ,The inner container mav conveniently consist of a cylinder, 2, somewhat smaller in diameter than the outer container, together with on shaped heads or ends, 3 and each having an annular orojccting flange, 5, of diameter equal to the diameter of the interior of the outer container and adapted to rest upon the ends of the cylindrical body 2. The parts are so proportioned that the inner container fits between the heads, 6 and 7,5? the outer container, so that the inner container cannot shift about and thus become injured. The goods to be packaged are placed in the innor container either while the latter is in the outer container or before assembling and, after the filled inner container and outer container ate assembled, the outer container is closed lo'y securing thereon a head, such as'arell top head, 7, which was left 0% in order to permit the contents to be inserted. it will be seen that'the contents ottheinner container are in contact only with the material of the inner container which is wholly surrounded by a free space except throughout the small areas at the extreme ends or corners of the inner container. In this condition of the package the goods are protected against the action of the metal of which the outer containeris made and are also protected by a heat insulating cushion of air completely surrounding the same. A still further protective efiect may be produced by withdrawing the air from the interior of the package so as to place the goods in a more or less complete vacuum. This can be accomplished by pumping the air out through a small opening in one of the heads of the outer container and then sealing the opening with a drop of solder as in dicated at 8. The inner container is not hermetically sealed and therefore the act of exhausting the air from the outer container serves also to withdraw the air from the inner container. Consequently the goods are protected by an enveloping vacuum and,

y reason of the absence of air in the package, are protected against oxidation.

In Figs. 3 and 4 the arrangement is substantially that of Figs. 1 and 2 except that the inner container is made of a strip of corrugated material bent into the form of a cylinder, 9, fitting within the outer container and closed at its ends by disks, 10 and 11, of the corrugated material. The corrugated material illustrated is ordinary corrugated paperboard composed of a layer of corrugated material and another layer )f uncorrugated material; but this arrangr ment may be varied. It will be seen that the corrugations provide numerous air cells forming a complete inclosing envelop for the goods Within the inner container. The air may be exhausted from the container, if desired, as heretofore explained.

In Fig. 5 there is illustrated an arrangement in which the outer container is the same as in the other forms while the inner container is a can or receptacle, 11, complete in itself; the arrangement being such that there is an air spacev between the inner contain'er and the outer container substantially as illustrated in Fig. 1. By making the inner container of metal, the'contents may be processed after they are packed in the inner container, a vacuum may be produced in the inner container or in the outer container independently of each other, or there may be a vacuum both in the inner container and in the outer container. The inner container may conveniently be a roll top can so that access to the contents of the package may be had by first rolling off the cover or top of the outer can and removing the inner can, and then rolling off the top, 12, of the inner can. e

While I have illustrated and described with particularity only a few preferred forms of my invention, I do not desire to be limited to the exact structural details thus illustrated and described; but intend to cover all forms and arrangements which come within the terms employed in the definitions of my invention constituting the appended claims.

I claim:

' 1. In a package, a hermetically sealed container made of metal, a wall of heat insulating material within the container in position to engage the contents and hold them away from the Walls of the container and at the same time leave between the walls of the container and the contents a free space enveloping the contents; the interior of the container, including said free space, having the air exhausted therefrom; and the wall of heat insulating material being mechanically strong enough to maintain said tree space.

2. In a package, a hermetically sealed container, a wall of heat insulating material within the air-tight container for engaging the contents and spacing them apart from the Walls of the container with a free space between the walls of the container and the contents and enveloping the latter; the interior of the container, including the free space, having the air exhausted therefrom; and the wall ot heat insulating material being mechanically strong enough to maintain said free space.

3. In a package, a' hermetically sealed metal can, a thick lining of corrugated heat insulating material in the can; said lining engaging the contents and spacing them apa'rt trom the body of the can and at the same time providing a free space em-rloping the contents and lying between the contents and the body of the can, the interior of the can, including said free space, having the air exhausted therefrom; and said lining being mechanically strong enough to maintain said free spacd. I I

4. In a packugm a container having double walls spaced apart from each other, the air being exhausted from the interior ol the coutainer and also from the space between the double walls; and the outer of said walls, at least, being ol material which makes the container airtight.

In testimony whereof, I sign this specification.

FRANCIS P. MQCOLL. 

